es.caib.signatura.impl
Class WebSignature

java.lang.Object
  es.caib.signatura.impl.WebSignature

All Implemented Interfaces:

Signature, java.io.Serializable

public class WebSignature
extends java.lang.Object
implements Signature, java.io.Serializable

Implementation of the interface Signature for a web signature.

Version:

0.98

Author:

Jesús Reyes (3dígits)

See Also:

Signer, Signature, Serialized Form

Field Summary

protected byte[]

signatureBytes

Constructor Summary

WebSignature(java.lang.String firma)
Creates a signature object from a web signature.

Method Summary

java.security.cert.X509Certificate	getCert() Returns the X509 certificate used to sign.
java.lang.String	getCertCaName() Gets the name of the certification authority of the certificate used to sign.
java.security.cert.X509Certificate[]	getCertificateChain() Returns the certificate chain.
java.lang.String	getCertSubjectAlternativeNames() Gets the concatenation of the subject's alternate name of the certificate used to sign as follows: name0 = value, name1 = value, ...
java.lang.String	getCertSubjectCommonName() Gets the subject's Common Name of the certificate used to sign.
java.lang.String	getContentType() Returns the content type of the signature.
java.util.Date	getDate() Gets the date of the signature timestamp.
protected java.lang.String	getInternalClassName() Gets the implementing class name.
ParsedCertificate	getParsedCertificate() Gets a ParsedCertificate object with the subject's credentials.
byte[]	getPkcs7() Returns the signature in PKCS#7 format.
void	setContentType(java.lang.String contentType)
void	setPkcs7(byte[] pkcs7)
boolean	verify() Determinate the certificate validity of the signature.
boolean	verify(java.io.InputStream contentStream) Verifies the digital signature of a document.
boolean	verifyAPosterioriTimestamp(java.io.InputStream contentStream) Verifies the digital signature of a document.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

signatureBytes

protected byte[] signatureBytes

Constructor Detail

WebSignature

public WebSignature(java.lang.String firma)
             throws SignatureDataException

Creates a signature object from a web signature. The signature has the following format: <Software identifier>:<MIME type>:<Base 64 codified signature>. The software identifier can be FF (Firefox) or IE (Internet Explorer).

Parameters:

firma - Web signature.

Throws:

java.io.IOException

SignatureDataException

Method Detail

setContentType

public void setContentType(java.lang.String contentType)

setPkcs7

public void setPkcs7(byte[] pkcs7)

getInternalClassName

protected java.lang.String getInternalClassName()

Gets the implementing class name.

getCertCaName

public java.lang.String getCertCaName()

Gets the name of the certification authority of the certificate used to sign.

Specified by:

getCertCaName in interface Signature

Returns:

the name of the certification authority.

getCertSubjectCommonName

public java.lang.String getCertSubjectCommonName()

Gets the subject's Common Name of the certificate used to sign.

Specified by:

getCertSubjectCommonName in interface Signature

Returns:

the subject common name.

getCertSubjectAlternativeNames

public java.lang.String getCertSubjectAlternativeNames()

Gets the concatenation of the subject's alternate name of the certificate used to sign as follows: name0 = value, name1 = value, ...

Specified by:

getCertSubjectAlternativeNames in interface Signature

Returns:

a string containing the subject's alternate name of the certificate.

getPkcs7

public byte[] getPkcs7()

Returns the signature in PKCS#7 format.

Specified by:

getPkcs7 in interface Signature

Returns:

a byte array containing the signature in PKCS#7 format.

getDate

public java.util.Date getDate()
                       throws SignatureTimestampException

Gets the date of the signature timestamp.

Specified by:

getDate in interface Signature

Returns:

the date of the signature timestamp or null if the signature doesn't include timestamp.

Throws:

SignatureTimestampException

verify

public boolean verify()
               throws SignatureVerifyException

Determinate the certificate validity of the signature.

Specified by:

verify in interface Signature

Returns:

true if the certificate is valid; false otherwise.

Throws:

SignatureVerifyException

See Also:

Signer.verify(java.io.InputStream, es.caib.signatura.api.Signature)

getContentType

public java.lang.String getContentType()

Returns the content type of the signature.

Specified by:

getContentType in interface Signature

Returns:

the content type of the signature.

getCert

public java.security.cert.X509Certificate getCert()

Returns the X509 certificate used to sign.

Specified by:

getCert in interface Signature

Returns:

the X509Certificate used to sign.

getCertificateChain

public java.security.cert.X509Certificate[] getCertificateChain()
                                                         throws java.lang.Exception

Returns the certificate chain.

Specified by:

getCertificateChain in interface Signature

Returns:

the certificate chain.

Throws:

java.lang.Exception

getParsedCertificate

public ParsedCertificate getParsedCertificate()

Gets a ParsedCertificate object with the subject's credentials.

Specified by:

getParsedCertificate in interface Signature

Returns:

a ParsedCertificate object with the subject's credentials.

verify

public boolean verify(java.io.InputStream contentStream)
               throws SignatureProviderException,
                      java.io.IOException,
                      SignatureVerifyException

Verifies the digital signature of a document. The verification process is independent of signature timestamp.

Specified by:

verify in interface Signature

Parameters:

contentStream - byte stream of the document.

Returns:

true if the verification process is correct; false otherwise.

Throws:

SignatureProviderException - If the API provider cannot be accessed.

java.io.IOException - If the document or the timestamp server is not available.

SignatureVerifyException - If failed the verification process.

verifyAPosterioriTimestamp

public boolean verifyAPosterioriTimestamp(java.io.InputStream contentStream)
                                   throws SignatureProviderException,
                                          java.io.IOException,
                                          SignatureVerifyException

Verifies the digital signature of a document. If the digital signature requires a timestamp and don't have it then a timestamp is added (if possible).

Specified by:

verifyAPosterioriTimestamp in interface Signature

Parameters:

contentStream - byte stream of the document.

Returns:

true if the verification process is correct; false otherwise.

Throws:

SignatureProviderException - If the API provider cannot be accessed.

java.io.IOException - If the document or the timestamp server is not available.

SignatureVerifyException - If failed the verification process.